Optimizing dome curvature boost heat transfer in concrete curing kiln
Summary: Conventional flat-top precast concrete curing kilns suffer from uneven temperature distribution, affecting production quality. This study introduced a curvature-varying dome curve (CVDC) to optimize the airflow dynamics. Numerical simulations evaluated the effects of different curvature coe...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-05-01
|
| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225006704 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850171739812659200 |
|---|---|
| author | Fengwei Liu Anjiang Cai Wenlong Luo Qiusheng Pang |
| author_facet | Fengwei Liu Anjiang Cai Wenlong Luo Qiusheng Pang |
| author_sort | Fengwei Liu |
| collection | DOAJ |
| description | Summary: Conventional flat-top precast concrete curing kilns suffer from uneven temperature distribution, affecting production quality. This study introduced a curvature-varying dome curve (CVDC) to optimize the airflow dynamics. Numerical simulations evaluated the effects of different curvature coefficients (K = 0, 0.25, 0.5, 0.75, and 1) on temperature distribution, thermal properties, and entropy generation under actual curing conditions. The results show that the CVDC design significantly improves the internal air circulation and heat transfer efficiency while minimizing kinetic energy losses. Specifically, when the curvature coefficient is K = 0.5, the average Nusselt number increases by 67.02%, the dissipated entropy generation decreases by 74.13%, and the uniformity of temperature distribution improves by 28.57% compared with the conventional flat ceiling structure. These findings provide practical guidance for optimizing the ceiling structure of curing kilns, offering great potential for improving energy efficiency in precast concrete manufacturing. |
| format | Article |
| id | doaj-art-e4d8a634b6084ac5aa8a6061da4ade03 |
| institution | OA Journals |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-e4d8a634b6084ac5aa8a6061da4ade032025-08-20T02:20:13ZengElsevieriScience2589-00422025-05-0128511240910.1016/j.isci.2025.112409Optimizing dome curvature boost heat transfer in concrete curing kilnFengwei Liu0Anjiang Cai1Wenlong Luo2Qiusheng Pang3School of Mechanical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Mechanical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; Corresponding authorInstitute of Building Mechanization, China Academy of Building Research, Beijing 100007, ChinaDezhou Haitian Electromechanical Technology Co., Ltd., Dezhou, Shandong 253400, ChinaSummary: Conventional flat-top precast concrete curing kilns suffer from uneven temperature distribution, affecting production quality. This study introduced a curvature-varying dome curve (CVDC) to optimize the airflow dynamics. Numerical simulations evaluated the effects of different curvature coefficients (K = 0, 0.25, 0.5, 0.75, and 1) on temperature distribution, thermal properties, and entropy generation under actual curing conditions. The results show that the CVDC design significantly improves the internal air circulation and heat transfer efficiency while minimizing kinetic energy losses. Specifically, when the curvature coefficient is K = 0.5, the average Nusselt number increases by 67.02%, the dissipated entropy generation decreases by 74.13%, and the uniformity of temperature distribution improves by 28.57% compared with the conventional flat ceiling structure. These findings provide practical guidance for optimizing the ceiling structure of curing kilns, offering great potential for improving energy efficiency in precast concrete manufacturing.http://www.sciencedirect.com/science/article/pii/S2589004225006704Heat transferMechanical engineeringThermal engineering |
| spellingShingle | Fengwei Liu Anjiang Cai Wenlong Luo Qiusheng Pang Optimizing dome curvature boost heat transfer in concrete curing kiln iScience Heat transfer Mechanical engineering Thermal engineering |
| title | Optimizing dome curvature boost heat transfer in concrete curing kiln |
| title_full | Optimizing dome curvature boost heat transfer in concrete curing kiln |
| title_fullStr | Optimizing dome curvature boost heat transfer in concrete curing kiln |
| title_full_unstemmed | Optimizing dome curvature boost heat transfer in concrete curing kiln |
| title_short | Optimizing dome curvature boost heat transfer in concrete curing kiln |
| title_sort | optimizing dome curvature boost heat transfer in concrete curing kiln |
| topic | Heat transfer Mechanical engineering Thermal engineering |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225006704 |
| work_keys_str_mv | AT fengweiliu optimizingdomecurvatureboostheattransferinconcretecuringkiln AT anjiangcai optimizingdomecurvatureboostheattransferinconcretecuringkiln AT wenlongluo optimizingdomecurvatureboostheattransferinconcretecuringkiln AT qiushengpang optimizingdomecurvatureboostheattransferinconcretecuringkiln |